﻿using CSharpPro._1030;

namespace CSharpPro;

class Program
{
    static void Man(string[] args)
    {
        Demo demo = new Demo();
        demo.Id = 10;
        Console.WriteLine(demo.Id);
        demo.TestPrint();
        UserTest userTest = new ConcreteUserTest();
        userTest.M1();
        userTest.M2();
        userTest.M3();
    
    
    
    }
}